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one.Project Background
At present, most of the vegetable supply chain systems in my country are mostly manual operations. The entire supply chain process of purchasing, transportation, warehousing, and wholesale sales is carried out entirely on experience. There is no automated and systematic management, which leads to poor information feedback. It is difficult to control each link. When problems arise, they cannot be discovered and dealt with in a timely manner, which leads to the lack of work in many links. At the same time, a lot of manpower, material resources, and financial resources were wasted in the management of finances and vehicles.
The above-mentioned reality in many aspects has brought about the consequences of rising costs and declining profit margins for our vegetable wholesalers. At the same time, due to human factors in various links, it has also severely restricted the development of vegetable wholesale enterprises, making it difficult to grow bigger. Be stronger and become a systematic, automated, and intelligent large-scale enterprise across regions.
In view of this, the RFID vegetable distribution management system was designed and launched. The system follows the current relevant procedures and procedures of the vegetable distribution and wholesale industry, and uses RFID radio frequency wireless identification technology to manage and control the entire link of vegetable distribution, which is timely, accurate and traceable. The system can effectively save costs, improve the reliability and maneuverability of enterprise operations, break through various constraints, and enable enterprises to grow rapidly, scale and intensify.
two.demand analysis
Today, when the price of vegetables is getting higher and higher, how to effectively, scientifically and real-time control all links of the enterprise supply chain is placed in front of enterprises. The competition is becoming more and more fierce. To be invincible in the market competition, the vegetable wholesale industry must continue to be invincible. Improve production efficiency and shorten the turnaround time of vegetables. According to market research and analysis, the entire vegetable supply chain logistics industry can greatly improve production efficiency and shorten the capital turnover time through informatization.
The RFID vegetable distribution management system can automatically collect data from all aspects of vegetable procurement, quality inspection, vegetable transportation, vegetable warehousing, logistics transportation, distribution, and vegetable sales. Provide users with real-time dynamic tracking and query throughout the whole process; realize the monitoring and management of processing information, system operation status, and business operation quality, while providing real, effective and timely management and decision support information for managers at all levels to provide support for the rapid development of business , So that enterprises get rid of the outdated model of relying on human manual entry and relying on empirical management. Provide enterprises with accurate, time-to-time, dynamic and objective first-hand data, so that enterprise management decision makers can provide scientific data basis for comprehensive, timely and accurate management. Since then, costs have been reduced, and profits and competitiveness have been improved.
three.System principle
The RFID vegetable distribution management system is mainly used for purchasing, warehousing, sales, finance, and vehicle management. It is composed of RFID electronic tags, handheld reading and writing equipment, fixed reading and writing equipment, terminal network server and its management software. When the vehicle cargo passes the range of the card reader antenna, the card reader reads the cargo information through the tag to realize management functions such as warehouse entry and exit.
3.1 Vehicle information management
Vehicle management is mainly for the functions of vehicle mileage setting, maintenance query, alarm reminder and so on.Use these system functions to strengthen the control and management of the vehicle, improve the accuracy of maintenance, extend the use time of the vehicle, enhance driving safety, and ensure the safe production of the enterprise
3.2 Financial Information Management
Financial information management is mainly to automatically generate reports for all aspects of procurement, inventory, sales, vehicle management, etc., to control the company’s accounting in all aspects. The rigor and accuracy of financial management of this system are difficult to achieve by manual management, and Greatly reduce manpower and reduce costs.
3.3 OutboundInbound management
Carry out automatic information recording of goods out of storageinto storage, and realize functions such as out-of-stock reminder and distribution reconciliation.
3.4 Sales Management
Among them, it is divided into warehousing management (warehousing management of the sales terminal), and warehousing management (ie sales) to form corresponding accounts, price information and settlement amount.
Four. RFID vegetable distribution management system process management
During the procurement process, we assigned RFID goods tags to store the codes that mark the goods, and transmitted the information to the database of the system server through the handheld card reader, and thus we started the management and tracking process.
When the goods arrive at the distribution center, the card reader can automatically read the information of the goods to compare and record the information of the goods in and out of the warehouse, and at the same time carry out various management of the inventory.
According to the needs of the sales terminal, we send it from the distribution center to the store. At this time, we also use RFID radio frequency tags and card readers to obtain cargo information for analysis, control and management.
At the point of sale (store), firstly use RFID radio frequency tags and card readers to perform warehousing and reading comparisons to ensure that the quantity of goods is accurate. The LED display in the store displays the vegetable varieties and unit prices provided by the database in real time. When the system confirms that the goods have been sold after receiving the payment, the goods can pass through the safety door, otherwise the alarm will be reported.
five. System characteristics of RFID vegetable distribution management system
Real-time monitoring of material storage to ensure the safety of materials in and out of the warehouse
Improve the supervision of materials, reduce and eliminate the illegal outflow of materials
The correctness of label recognition is high, reducing human error input;
Increase the accuracy of inventory;
Effective inventory management and control, fast and efficient material circulation;
The statistical reports of various current and historical affairs of materials provide accurate and useful information for decision makers
Record the time spent by the material manager to complete the work, grasp the work efficiency of the material manager, and enhance the management of the material manager;
Converting a large amount of paper text information required for material receipts into electronic data, simplifying the query steps, only need to enter the query conditions, the required records will be found, which greatly accelerates the query speed;
Implementation of RFID vegetable distribution management system
1. Software configuration
Server hardware requirements
CPU quad-core four threads, maximum support 2 CPUs, CPU frequency 2.0GHz
Memory ECC DDR3 memory capacity 2G, 8 memory slots
160G, SAS interface, maximum support 6TB
CD-ROM DVD-ROM
Network Controller Gigabit Ethernet Controller
Client hardware requirements
Ordinary PC
Cpu frequency above 1.0GHz
Memory above 1G
Hard disk above 40G
Reader working frequency: standard configuration
Working mode: spectrum frequency hopping
RF power: 0~30db’ software adjustable
Card reading mode: standard configuration of master-slave mode card, automatic mode card reading and external control card reading functions can be customized
Card reading distance: related to the gain of the external antenna
Power supply: DC+9V DC power supply (with power adapter)
Working temperature: -20℃~＋80℃
Handheld industrial grade handheld with UHF RFID reader module, GPRS module;
SIM with GPRS function
2. Hardware configuration
①Reader:
②Electronic label:
③Antenna:
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